Crystallization-Induced Dynamic Resolution of Fox Chiral Auxiliary and Application to the Diastereoselective Electrophilic Fluorination of Amide Enolates
作者:Hodney Lubin、Christophe Dupuis、Julien Pytkowicz、Thierry Brigaud
DOI:10.1021/jo400210j
日期:2013.4.5
efficient crystallization-induced dynamic resolution (CIDR) of trans-Fox (fluorinated oxazolidine) chiral auxiliary is reported. This chiral auxiliary was used for highly diastereoselective (>98% de) electrophilic fluorination of amide enolates. After removal of the chiral auxiliary, highly valuable enantiopure α-fluorocarboxylic acids and β-fluoroalcohols are obtained.
的高效率的结晶诱导的动态分辨率(CIDR)反式-福克斯(氟化恶唑烷)手性辅助剂的报道。该手性助剂用于酰胺烯酸酯的高度非对映选择性(> 98%de)亲电氟化。除去手性助剂后,获得了高度有价值的对映纯α-氟代羧酸和β-氟代醇。